中国科学院数学与系统科学研究院期刊网
Some Properties for the Estimators in Linear Mixed Models
Zai-xing Li, Yan Cui, Wang-li Xu
Acta Mathematicae Applicatae Sinica(English Series) . 2013, (1): 105 -116 .  DOI: 10.1007/s10255-011-0067-9